一个圆柱形水池,水池内壁和底部都镶上瓷砖,水池内部底面周长25.12m,池深1.2m,镶瓷砖的面积 一个圆柱形水池,水池壁和底部都镶上瓷砖,水池内部地面周长25...
\u4e00\u4e2a\u5706\u67f1\u5f62\u6c34\u6c60\u6c34\u6c60\u5185\u58c1\u5e95\u90e8\u90fd\u9576\u4e0a\u74f7\u7816\u6c34\u6c60\u5185\u90e8\u5e95\u9762\u5468\u957f25.12m\u6c60\u6df11.2m\u9576\u74f7\u7816\u9762\u79ef\u662f\u591a\u5c11\u5e73\u65b9\u7c73\uff1f\u5e95\u9762\u534a\u5f84\uff1a
25.12\u00f73.14\u00f72=4\uff08\u7c73\uff09
\u5e95\u9762\u79ef\uff1a
4²\u00d73.14=50.24\uff08\u5e73\u65b9\u7c73\uff09
\u4fa7\u9762\u79ef\uff1a
25.12\u00d71.2=30.144\uff08\u5e73\u65b9\u7c73\uff09
\u9576\u74f7\u7816\u7684\u9762\u79ef\u662f\uff1a
50.24+30.144=80.384\uff08\u5e73\u65b9\u7c73\uff09
25.12\u00f73.14\u00f72=4\uff08\u7c73\uff09
3.14\u00d74\u00d74+25.12\u00d71.2
\uff1d50.24+30.144
\uff1d80.384\uff08\u5e73\u65b9\u7c73\uff09
底面半径=25.12÷2÷3.14=4米,
镶瓷砖的面积=2×3.14×4×1.2+3.14×4×4=80.384平方米,
答:镶瓷砖的面积是80.384平方米,
一个圆柱形水池,水zhidao池内壁和底部都镶上瓷砖,水池内部底面回周长25.12m,池深1.2m,
底面半径=25.12÷2÷3.14=4米,
镶瓷砖的面积=2×答3.14×4×1.2+3.14×4×4=80.384平方米,
答:镶瓷砖的面积是80.384平方米
用周长25.12除以 3.14就等于直径8,8再除以2等于半径4m,水池只有二个面,一个侧面,一个底面,用3.14乘以半径的平方等于50.24㎡。再算侧面积2×3点一四乘以半径乘以深1.2米等于30.144。底面面积加侧面面积等于80.384㎡。
25.12ⅹ1.2=30.144平方米
25.12÷3.14÷2=4米
4x4ⅹ3.14=50.24平方米
30.144+50.24=80.384平方米
一个圆柱形水池,水池内壁和底部都镶上瓷砖,水池内部底面周长25.12m,池深1.2m,
底面半径=25.12÷2÷3.14=4米,
镶瓷砖的面积=2×3.14×4×1.2+3.14×4×4=80.384平方米,
答:镶瓷砖的面积是80.384平方米。
绛旓細姹犵殑搴曢潰绉=3.14脳锛6/2锛塣2 =3.14脳9 =28.26锛堝钩鏂圭背锛夋睜鐨勪晶闈㈢Н=3.14脳6脳1.2 =22.608锛堝钩鏂圭背锛夐暥鐡风爾鐨勯潰绉=28.26+22.608 =50.868锛堝钩鏂圭背锛
绛旓細浣犲ソ锛涘簳闈㈢Н=3.14脳锛6梅2锛²=28.26锛堝钩鏂圭背锛変晶闈㈢Н=3.14脳6脳1.2=22.608锛堝钩鏂圭背锛夐暥鐡风爾鐨勯潰绉=22.608+28.26=50.868锛堝钩鏂圭背锛
绛旓細鍗婂緞=4绫 楂=1.2绫 闀剁摲鐮栫殑闈㈢Н =搴曢潰绉+渚ч潰绉 =3.14脳4脳4+2脳3.14脳4脳1.2 =80.384骞虫柟绫 ~涓鍒绘案杩523涓轰綘瑙g瓟锛岀浣犲涔犺繘姝~~濡傛灉浣犺鍙垜鐨勫洖绛旓紝璇峰強鏃剁偣鍑汇愰噰绾充负婊℃剰鍥炵瓟銆戞寜閽畘~鎵嬫満鎻愰棶鑰呭湪瀹㈡埛绔笂璇勪环鐐光滄弧鎰忊濆嵆鍙瘇~~浣犵殑閲囩撼鏄垜鍓嶈繘鐨勫姩鍔泘~~濡傝繕鏈夋柊鐨勯棶棰...
绛旓細姹犵殑搴曢潰绉=3.14脳锛6/2锛塣2 =3.14脳9 =28.26锛堝钩鏂圭背锛夋睜鐨勪晶闈㈢Н=3.14脳6脳1.2 =22.608锛堝钩鏂圭背锛夐暥鐡风爾鐨勯潰绉=28.26+22.608 =50.868锛堝钩鏂圭背锛
绛旓細鍗婂緞=3绫 闈㈢Н=3脳3脳3.14+6脳3.14脳1.2=50.868骞虫柟绫
绛旓細(6^2蟺+1.2*6蟺)*1.2=163銕 鑰冭檻鍒扮摲鐮栫殑鎹熻楄繖閲屽姞浜嗕釜1.2鐨勭郴鏁般傜瓟锛氶暥鐡风爾鐨勯潰绉渶澶氭槸163銕°50*20蟺+50*2=3200c銕 鑰冭檻鍒伴搧鐨帴鍙e彟鍔50*2c銕¢搧鐨 绛旓細灏戣鐢3200骞虫柟鍘樼背閾佺毊銆
绛旓細3.14脳6脳1.2=22.608锛堝钩鏂圭背锛姘存睜鐨勫簳闈㈢Н锛3.14脳锛6梅2锛2=28.26锛堝钩鏂圭背锛夎创鐡风爾鐨勯潰绉細22.608+28.26=50.868锛堝钩鏂圭背锛夌瓟锛氶暥鐡风爾鐨勯潰绉槸50.868骞虫柟绫筹紟姘存睜鐨勫绉細3.14脳锛6梅2锛2脳1.2=3.14脳9脳1.2=33.912锛堢珛鏂圭背锛1脳33.912=33.912锛堝惃锛夌瓟锛氳搫姘存睜鑳借搫姘33....
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